104 Mr. R. M‘Lachlan’s Monograph of the 
(if the hairs be removed these wings are pale brown); neuration 
indistinct. Posterior wings subhyaline, dark smoky-grey, with 
paler fringes. Legs ochreous, the tarsi very faintly annulated 
with brownish. Abdomen fuscous, with pale lateral lines. The 
lobe from the middle of the upper margin of the last abdominal 
segment in the male triangular, entire, the apex much produced ; 
app. sup. large, broadly triangular, fringed with long yellowish 
hairs ; app. inf. small, with the curved tips (or small apical joint ?) 
directed downwards, and with a short, cylindrical, obtuse tooth 
at the base on the ventral surface; there are also two fine curved 
needle-shaped sheaths, and what appear to be broad boat-shaped 
upper and lower penis-covers. The apex of the abdomen in the 
female is obtuse, without prominent appendices. 
Expanse of fore-wings 11—13 lines. 
This species was found commonly by Mr. Wormald in August, 
1862, at the Ruislip Reservoir, Middlesex; and I have also re- 
ceived it in some numbers from the Fen District. It is not con- 
tained in the collections of Curtis or Stephens. LZ. annulicornis 
of the latter author is distinct ; the description under that name 
in Ent. Ann. 1860, p.70, pertains to L. fulvus. 
In the ‘Synopsis synonymica” Dr. Hagen makes Phryganca 
ochrata, Zett. (Ins. Lapp. col. 1072, 49), synonymous with ZL. 
fulvus, without however giving the former name the right of pri- 
ority. This cannot be correct, since P. ochrata is said to be of 
the same size as P.(Mystacides) 4-fasciata, or not much more than 
half the size of ZL. fulvus. What P. ochrata really is, | do not 
know; possibly T'rienodes bicolor (p. 111) or Setodes reducta 
(p. 120). 
4, Leptocerus bimaculatus, Stephens. (PI. XII. fig. 13, app.) 
Leptocerus bimaculatus, Steph. (*) Ill. p. 197, 11 (1836), not 
of Linn.; Hag. (*) Ent. Ann. 1860, p. 79, 59; L. albogut- 
tatus, Hag. (*)Stett. Zeit. 1858, p. 122 ; Mystacida albima- 
cula, Ramb. Hist. Nat. Névrop. p. 509, 2 (1842) ? 
Antennz brown, annulated with white to the apex. Head and 
palpi brown, clothed with grey hairs. Mesothorax brown, darkest 
at the sides. Anterior wings brown, with a large whitish or 
ochreous spot at the arculus, most distinct in the female; fringes 
greyish-brown; neuration indistinct. Posterior wings greyish, 
subhyaline ; fringes grey, except at the apical portion of the costal 
margin, where they are white. Legs grey, the tips of the tarsal 
joints and the anterior tibie brown. Abdomen greyish-brown 
(greenish when alive), with white lateral lines. In the male there 
